Mathematicians Settle the Erdős Coloring Conjecture
Fifty years ago, three mathematicians came up with a graph theory problem that they thought they might solve on the spot. A team has finally settled it. ..
Fifty years ago, three mathematicians came up with a graph theory problem that they thought they might solve on the spot. A team has finally settled it. ..
Clever experiments demonstrate how having your face in your phone disrupts the flow of pedestrian traffic and makes life difficult for everyone. ..
A new thought experiment indicates that quantum mechanics doesn’t work without strange numbers that turn negative when squared. ..